JPH08317334A - Video movie - Google Patents

Abstract

PURPOSE: To previously record a high-fidelity(HIFI) sound having high sound quality or to selectively reproduce a HIFI, sound or a linear sound at the time of reproduction by providing a selecting switch so as to independently use respective heads at the video movie for recording and reproducing images and sounds. CONSTITUTION: By providing a recording mode switch 40 and selecting any one of a normal recording mode 44, pre-recording mode 46 and after-recording mode 48, the images can be recorded without damaging the HIFI sounds such as music previously recorded by a HIFI audio head 32. Besides, by providing a reproducing mode switch and arbitrarily switching a HIFI sound reproducing mode, linear sound reproducing mode and mix reproducing mode at the time of reproduction, free choice such as enjoying images with the music of HIFI sounds as BGM or listening to the sounds generated by those images is enabled.

Description

Detailed Description of the Invention

[0001]

INDUSTRIAL APPLICABILITY The present invention is capable of pre-recording high-fidelity audio and then superimposing video and linear audio, and reproducing the hi-fi audio and linear audio independently or in a mixture during reproduction. It is about possible video movies.

[0002]

2. Description of the Related Art In recent years, video movies are required to have multiple functions.

A conventional video movie will be described below. FIG. 5 is a perspective view showing an outline of a conventional video movie. In FIG. 5, 10 is a conventional video movie, 12 is a lens, 14 is a microphone, 16 is a switch button for starting and stopping recording, and 18 is an external audio input terminal.

The operation of the video movie configured as above will be described below.

First, when the composition is set toward a subject (not shown) and the switch button 16 is pressed, the image of the subject passes through the lens 12 and the voice passes through the microphone 14 and the magnetic tape (not shown). Recorded in.

When the recorded magnetic tape is reproduced, the image and sound of the subject are reproduced. Moreover, if the music used for BGM or the like is recorded in advance with linear sound using the external audio input terminal 18 and then the subject is photographed, the BGM is linear sound together with the image of the subject, and the sound emitted by the subject is high fidelity. It is played by voice.

[0007]

However, in the above-mentioned conventional configuration, since video and audio are recorded and reproduced at the same time,
For example, it has not been possible to satisfy the demand for reproducing an audio signal such as music, which has nothing to do with the sound generated by the subject, at the same time as the video.

In order to meet the above requirements, there is a means for later recording music by using a function such as post-recording, but since the music is recorded by a linear voice head, the sound quality is not so high as high-fidelity voice but inferior in sound quality. It becomes a linear voice.

The same is true for a system in which the BGM is recorded in advance with a linear voice, which is a function provided in some models.

As another means, it is conceivable to dubb the recorded magnetic tape onto another magnetic tape while simultaneously recording a voice signal of music or the like in high fidelity. The image was a one-time copy image and had a problem that the image quality was inferior to that of the original tape.

The present invention solves the above-mentioned conventional problems and records two audio signals such as an audio signal generated by a subject and a favorite music signal and a video signal without deteriorating the image quality and sound quality. The purpose is to provide a playable video movie.

[0012]

In order to achieve this object, a video movie of the present invention contacts at least a magnetic tape wound around a rotary head cylinder and helically rotates to record and reproduce an audio signal. Two first rotary heads, at least one second rotary head that superimposes and records a video signal on the surface layer of the first audio track recorded by the first rotary head, and the first and second rotary heads. At least one third rotary head for tracing and erasing the signal tracks recorded by the rotary head;
A first fixed head that records and reproduces a reference signal for sending the magnetic tape at a constant speed; a second fixed head that records and reproduces an audio signal as a second audio track in the longitudinal direction of the magnetic tape feed; A third fixed head that abuts the entire width of the magnetic tape and erases signals over the entire width;
A first rotary head and a first fixed head in a recording state, a second rotary head and a second fixed head in a recording state, and a switching means for switching the energization state to each head. First operation mode in which the rotary head and the third fixed head are in use, and the first rotary head and the first rotary head
The fixed head of the second recording head and the second rotary head and the second rotary head.
Second operating mode in which the fixed head of 3 is set to the unused state and the third rotary head and the third fixed head are set to the used state, and the first rotary head and the first fixed head are set to the reproduction state, and The rotary head and the second fixed head to the recording state, and the third
And a third operation mode in which the third fixed head is in an unused state.
The audio signal switching means is provided for selectively switching the audio signals from the rotary head and the second fixed head, and for mixing and outputting.

[0013]

With this configuration, another voice signal, for example, BG
Music to be recorded in M is recorded in advance on a high-fidelity track of a magnetic tape for shooting, and the video of the subject is recorded on the video track and audio is recorded on the linear audio track at the same time by superimposing it on the magnetic tape. Then, the original soft tape with the hi-fi music as BGM can be created.

[0014]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an example in which the present invention is applied to a video movie. In the video movie 20 of FIG. 1, reference numeral 22 denotes a lens, which captures an image of a subject. Two
Reference numeral 4 denotes a microphone, which captures the sound of the subject. Two
Reference numeral 5 denotes an external voice input terminal, which can directly input a voice signal from the outside.

Images and sounds captured by the lens 22 and the microphone 24 are converted into electric signals and recorded on a magnetic tape by a magnetic head.

A signal from the external audio input terminal 25 is also recorded on the magnetic tape by the magnetic head.

This principle will be described in more detail with reference to FIG. 2. In the inside of the video movie 20, the magnetic tape 26 sent at a constant speed in the direction of arrow A has 6 types of magnetic heads for recording and reproducing signals. .

First, a full erase head 28 for erasing signals over the entire width of the magnetic tape 26, mounted on a rotating drum (not shown), is helically scanned at a high speed in the direction of arrow B, and the signals are erased in track units. At least one flying erase head 30, a plurality of high-fidelity audio heads 32 for recording and reproducing audio signals with high sound quality, a plurality of video heads 34 for recording and reproducing video signals, and the vicinity of the upper end of the magnetic tape 26. Fixed to the linear audio head 3 for recording and reproducing in the longitudinal direction of the magnetic tape by moving the magnetic tape 26.
6. A control head 38 fixed near the lower end of the magnetic tape 26 for recording and reproducing a reference control signal so that the magnetic tape 26 can be transported at a constant speed.

The video movie 20 shown in FIG. 1 includes a recording mode switch 40 for switching the operating state of each head during recording and reproduction, and a reproduction mode switch 42.

The recording mode switch 40 includes a normal recording mode 44 and a pre-recording mode 4
6. It has 3 positions of video dubbing mode 48.

The reproduction mode switch 42 includes a hi-fi sound reproduction mode 50, a linear sound reproduction mode 52,
It has three positions of the mix reproduction mode 54.

FIG. 3 shows the relationship between each position of the recording mode switch 40 and the head. First, at the time of recording, when the recording mode switch 40 is in the normal recording mode 44, the full erase head 28 is connected to the erasing circuit 56, and the erasing current is supplied.

The flying erase head 30 is also connected to the erasing circuit 58, and an erasing current is supplied.

The high-fidelity audio head 32 is connected to the high-fidelity audio recording circuit 60, and a high-fidelity high-fidelity audio signal is energized and recorded on the magnetic tape 26.
At this time, if an external audio input means such as a tape recorder is connected to the external audio input terminal 25, the signal is recorded on the magnetic tape 26.

The video head 34 is connected to the video recording circuit 62, a video signal is energized and recorded on the magnetic tape 26.

The linear audio head 36 is connected to the linear audio recording circuit 64, and a linear audio signal is energized and recorded on the magnetic tape 26.

The control head 38 is connected to the control signal recording circuit 66, and the control signal is energized and recorded on the magnetic tape 26.

When the recording mode switch 40 is in the pre-recording mode 46, the full erase head 28 is connected to the erasing circuit 56 and the erasing current is supplied.

The flying erase head 30 is also connected to the erasing circuit 58, and an erasing current is supplied.

The hi-fi audio head 32 is connected to a hi-fi audio recording circuit 60, and a hi-fi audio signal is energized and recorded on the magnetic tape 26. This time,
If an external audio input means such as a tape recorder is connected to the external audio input terminal 25, the signal is recorded.

The video head 34 is connected to the video reproducing circuit 68, or the connection is broken and the video head 34 does not work.

The linear audio head 36 is connected to the linear audio reproducing circuit 70, or the connection is cut off so that the linear audio head 36 does not work.

The control head 38 is connected to the control signal recording circuit 66, and the control signal is energized and recorded on the magnetic tape 26.

Further, when the recording mode switch 40 is in the video dubbing mode 48, the full erase head 28 is disconnected and does not work.

The flying erase head 30 is also disconnected and does not work. The high-fidelity audio head 32 is connected to the high-fidelity audio reproduction circuit 72, or the connection is cut off and becomes inoperative.

The video head 34 is connected to the video recording circuit 62, a video signal is energized and recorded on the magnetic tape 26.

The linear audio head 36 is connected to the linear audio recording circuit 64, and a linear audio signal is energized and recorded on the magnetic tape 26.

The control head 38 is connected to the control signal reproducing circuit 74 to reproduce the control signal.

Next, each position of the reproduction mode switch 42 is shown in FIG. First, at the time of reproduction, when the reproduction mode switch 42 is in the high-fidelity audio reproduction mode 50, the audio output terminal 7 provided on the video movie 20.
A high fidelity audio reproduction circuit 72 is connected to 6, and only a reproduction signal from the high fidelity audio head 32 is output.

When the reproduction mode switch 42 is in the linear audio reproduction mode 52, the linear audio reproduction circuit 70 is connected to the audio output terminal 76 provided on the video movie 20, and the linear audio head 36 is connected. Only the reproduction signal from is output.

Further, when the reproduction mode switch 42 is in the mixed reproduction mode 54, the audio output terminal 76 provided on the video movie 20 is controlled by the input level adjuster 78 so that a desired volume balance is achieved. The adjusted reproduction signals from the hi-fi sound reproducing circuit 72 and the linear sound reproducing circuit 70 are mixed by the hi-fi and linear mixing circuit 77 and output at the same time.

Next, an example of how to use the video movie 20 of this configuration will be shown. First, if the recording mode switch 40 is set to the normal recording mode 44, a normal movie can be shot.

If a user wants to shoot a video in which his or her favorite music is BGM, first, the recording mode switch 40 is set to the pre-recording mode 46, and the external audio input terminal 25
A tape recorder or the like is connected to and the music is recorded on the magnetic tape 26 by the hi-fi audio head 32.

Next, the magnetic tape 26 is rewound and the recording mode switch 40 is switched to the video dubbing mode 48. If an image is taken in this state, the music recorded by the hi-fi audio head 32 is not erased, but the image is recorded by the video head 34.

At the same time, the sound from the subject is recorded on the magnetic tape 26 by the linear sound head 36.

It should be noted that the recording mode switch 4 is pressed during the photographing in the pre-recording mode 46 and the video dubbing mode 48.
When 0 is set to the normal recording mode 44, it is possible to return to normal shooting.

The magnetic tape 26 recorded in this way
When the reproduction mode switch 42 is selected to the high-fidelity audio reproduction mode 50 when reproducing, the music recorded in advance is reproduced in high-fidelity audio at the same time as the reproduced video of the subject.

When the reproduction mode switch 42 is selected to the linear audio reproduction mode 52, the audio reproduced by the object and the audio produced by the object are reproduced as linear audio.

When the reproduction mode switch 42 is set to the mixed reproduction mode 54, the pre-recorded music is simultaneously reproduced as hi-fi sound and the sound uttered by the subject is simultaneously reproduced as linear sound at the same time as the reproduced image of the object. It

At this time, the volume level balance between the hi-fi voice and the linear voice can be arbitrarily set by the input level adjuster 78.

[0052]

As described above, according to the present invention, the recording mode switch is provided, and the full erase head, flying erase head, hi-fi audio head, video head,
By selecting the function of each head of the linear audio head and control head, video can be recorded without damaging the high fidelity sound of music etc. recorded in advance with the high fidelity audio head, and a playback mode switch is provided for playback. By arbitrarily switching, it is possible to realize an excellent video movie in which a user can freely select and enjoy a video by using music with high-fidelity sound as BGM and listen to a sound produced by the video.

[Brief description of drawings]

FIG. 1 is a perspective view of a video movie according to an embodiment of the present invention.

FIG. 2 is an operation diagram of a head portion for explaining the same operation.

FIG. 3 is a block diagram of a head section for explaining the operation of the same.

FIG. 4 is a block diagram of an audio circuit section for explaining the operation of the same.

FIG. 5 is a perspective view of a conventional video movie.

[Description of symbols] 26 magnetic tape 28 full erase head 30 flying erase head 32 hi-fi audio head 34 video head 36 linear audio head 38 control head 40 recording mode switch 42 playback mode switch

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kenji Kajiwara 1006 Kadoma, Kadoma-shi, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (2)

[Claims] 1. At least one first rotary head that records and reproduces an audio signal by contacting with a magnetic tape wound around a rotary head cylinder and rotating helically, and recorded by the first rotary head. At least one second rotary head that superimposes and records a video signal on the surface layer of the first audio track, and at least the signal tracks recorded by the first and second rotary heads are traced to erase the rotation. One third rotary head, a first fixed head that records and reproduces a reference signal for sending the magnetic tape at a constant speed, and an audio signal that is recorded as a second audio track in the longitudinal direction of the magnetic tape feed, A second fixed head for reproducing, a third fixed head for abutting the entire width direction of the magnetic tape and erasing a signal over the entire width, and energization to each of the heads. Switching means for switching the state, wherein the first rotary head and the first fixed head are in a recording state, the second rotary head and the second fixed head are in a recording state, and the third rotating head is in a recording state. A first operation mode in which the rotary head and the third fixed head are in a use state; and the first rotary head and the first fixed head are in a recording state, and the second rotary head and the second A second operation mode in which the fixed head is in an unused state and the third rotary head and the third fixed head are in a used state, and the first rotary head and the first fixed head are in a reproduction state. , A third motion mode in which the second rotary head and the second fixed head are in a recording state, and the third rotary head and the third fixed head are in an unused state. 2. A video movie according to claim 1, further comprising audio signal switching means for selectively switching audio signals from the first rotary head and the second fixed head during reproduction, and for mixing and outputting. .